Run the "build" script before starting "develop" script
Run the "build" script before starting "develop" script

If we just run "gulp", the app code isn't built, so we don't see our changes.

kravets-levko/os-viewer,openspending/os-viewer,openspending/os-viewer,kravets-levko/os-viewer,openspending/os-viewer,kravets-levko/os-viewer